Wheeled scraper.



R. L. PFEIL.

WHEELED SCRAPER.

APPLICATION FILED JUNE 28.1917.

1 93,536, Patented Feb. 4:, 1919.

2 SHEETSSHEET l.

R. L. PFEIL.

WHEELED SCRAPER.

APPLICATION FILED JUNE 28. 1911.

1,298,536, Patented Feb. 4, 1919.

- 2 SHEETSSHEET 2.

j o o fl Z 25 17 1f 1L 25 l a a? Q 5a. i o 19 o Z5 41 c o 42 22 a 5-7 0 Z a. 1 4 l9- 45 :Q I D 65 5 W (/6373 6., away-.0 um? RUDOLPH LQPFEIL, OI EAJNFORD, CALIFORNIA.

WHEELEID SGEB.

Kings and State of California, have invented a new and useful Improvement in Wheeled Scrapers, of which the following is a specification. j

Myinvention relates to an im rovement 1n wheeled scrapers for removing irt, and more .especially to those of large sizes, and has particular reference to improvements on that form of wheeled scraper for which Letters Patent No. 1,074,589 was issued on September 30, 1913, to Thomas B. Ferguson of Hanford, Californiaf The objects of my 1mprovements which I have invented are to retain withinthe scraper scoop the dirt which is being transported until it is desired to dump it, which is especially desirable in transporting dirt long distances, to eliminate the portion of the axle which extends across the scoop in the scraper described in the Letters Patent referred to, to adjust the draw bar or clevis to which the draft is applied so that after tipping the scraper scoop, in the readjustment of the scoop for filling it will slide into position Without unusual jar, to'have the scraper assembly balanced so the load in the scraper scoop is carried directly over the side wheels, and other objects which will hereinafter appear.

These objects are accomplished by means of the invention hereinafter described and shown on the accompanying drawing in which Figure 1 shows a side elevation of the scraper, Fig. 2 is a view of the scraper from the top, Fig. 3 is a view of a portion of the scraper from the inside of the scoop showing parts thereof in section and showing a balance wheel which may optionally be placed on the scraper. Fig. 4 is a detailed view of the main scoop and auxiliary.

scoop showing their operative relation to each other. Fig. 5 is a side view of a modified form of scraper disclosing a top view of the adjustable clevis.- Fig. 6 is an enlarged view of the sliding clevis as attached to the tongue.

In said drawing I have indicated the main frame as A. 'B is the main scoop and C an auxiliary scoop. D and D are theside wheels which carry the scraper. The main frame A consists of two pairs of beams'2 and 2 and 3 and 3*, one' pair of which is one each side of the scraper scoop B. The

Specification of Letters Patent.

Patented Feb. 1,1919.

Application filed June as, 1917. Serial No. 177,609.

rear portions of these pairs of beams are parallel and theyconverge toward the front, the beam 2 converging toward and being attached to beam 2, and the front end of beam 3 converging toward and being attached to beam 3. The beams 2 and 3 converge. The converging extension of beam ,2 is designated as 2*, and the converging extension of beam 3 is designated as 3". Beams 2 and 3 are tied together by a crossbeam 4 in front of the scraper wheels, and are tied at the rear of the wheels by a tiebeam 5. axle 7 which rotates in boxes 8 and 8* which are suspended from, and attached to parallel beams 2 and 2 and side wheel D is.likewise supported on axle 7 which is carried in boxes 9 and 9 suspended from and attached to parallel beams 3 and 3. The main scoop B is constructed with two sides, 27 and 27 a back 27", and a bottom 27. The bottom 27 terminates in a'cutting edge 27. E andE" are trunnion guides consisting of slotted members, one of which is at- Side wheel D is supportedon an and 11 The main scoop is provided with trunnions 10 and 10 which project from the sides 27 and 27 of the main scoop, said trunnions being carried in, and guided by slots '11 and 11 7 The slots and trunnions hear such relation to each other that when the scoop is at its normal'position with its bottom approximately on a horizontal plane, the truxmions 10 and 10 are at the bottom of the slots 11 and 11 13 and 13 are draw-bars pivoted to the inside of the main scoop opposite to the trunnions 10 and 10*. These draw-bars extend toward the front of the scraper and terminate in hooks 15 and 15 scraper frame on which the operator of the scraper can stand to manipulate it. For the purpose of operating the scoop for filling and dumping I have provided a rocking shaft 17 which runs parallel with the tiebeam 5 and is j ournaled in bearings attached to said tie-beam, indicated as'l7 and 17 18 is a tilting lever attached to rocking shaft 17, and is placed in a position near the platform so the operator can readily reach it. 19 and 19 are rocker-shafts constructed to turn in bearings 20 and 20 and 21 and 21 22 and 22 are arms attached to rocker shafts H is a platform at the rear of the 19 and 19 on the outside ends thereof. 23 p and 23 are arms attached to the outside ends of'rocking shaft 17 and 24 and24 are connecting rods which join arms 22 and 23, and .22 and 23 and transmit a synchronous movement from rocking shaft 17 to rocking shafts 19 and 19. 26 and 26* are hangers pivoted at one end to the front of the sides 27 and 27* of the main scoop, and the other end to arms 25 and 25. It will be noted that by this arrangement by moving lever 18 the scraper scoop can be set so it will cut into the earth, or the scoop can be raised so it will be clear of the. earth and dump the scoop. 28 and 28 are arms pivoted to the rear of frame A, having catches 36 and 36 at one end thereof, the other ends of said arms extending backward under the platform H. The arms 28 and 28, and the catches 36 and 36 bear such relation to the scraper scoop that normally they hook over .28 and 28 which converge directly under said push rod. When the operator desires to dump the scraper scoop the hooks 36 and 36 are released by pushing the push-rod downward. When thus released the, draft on the scraper furnishes sufficient power to dump the scoop. When the scraper is pulled into position for loading the catches 36 and 36 prevent it from dumping until said catches are released.

The object of the auxiliary scoop C is to catch the dirt which may be shoved ahead of the main scoop when it is being loaded. This scoop is made approximately the same length as the main scoop but it is smaller in other dimensions. 51 and 51 are trunnions, one of which is attached to each side of the auxiliary scoop near the bottom and near the cutting edge. 53 and 53 are slotted guidesin which the trunnions 51 and 51 slide. These guides are attached to the in side of frame A to beams 2 and 3. 33 and 33 are supports to which the auxiliary scoop is hung. They are curved in the shape of a goose-neck 33, and have an approximately horizontal extension 33 reaching toward the rear of the scraper. These supports are securely fastened to the frame A. Near the backward lower extension of the curve 33 I have journaled shafts 32 and 32 which carry crank arms 38 and 38 and-39 and 39 on opposite ends thereof. 30 is a rocker shaft extending parallel with tie-beam 5 the full length of the scraper,and is journaled on frame A. 31 is a lever attached to shaft 30 for the purpose of rocking it. 41 and 41 are arms attached to the outside ends of rocker shaft 30. 42 and 42 are connect- '45 and 45 are connecting rods pivoted to arms 38 and 38, and to the sides of the auxiliary scraper bowl. It will be noted that by these T rigidly attached to the front ends of the sides of the auxiliary scoop. The relation of the curved slots 51 and 51 with the hangers 44 and 44 are such that when the trunnions 51 and 51 are at the bottom of the guides 53 and 53, the cutting edges of the main scoop and auxiliary scoop are parallel, and the bottom of said scraper scoops are on approximately parallel planes. The said goose-neck curve 33 is of such dimension that when the auxiliary scraper scoop is raised to its highest point which the travel of the trunnions in the curved guides will permit, it will not be stopped by said support 33. I

34 is a balancing Wheel attached to a swivel 14 which is attached to the front end of frame A. This balancing wheel is optional as on some types of scraper, especi ally those pulled by tractors, said balancing wheel can be, dispensed with.

The extremeforward ends of beams 2 and 23, noted on Fig. 6 as 2 and 3, are formed parallel and are grooved to form a slideway 67. 60 is a sliding member fitted in said slideway which terminates at the forward end in a hook or loop 61 to which the draft can be applied. 62 is a clevis attached to said sliding member 60, and 63 and- 63 are links which connect the sliding member 60 with rods 13 and 13. This clevis has a plurality of holes, 65, 65 -and 65 therein for the purpose of adjusting the length of the connecting links between the sliding member 60 and the trunnions of the main scoop. 66 is thebolt which attaches clevis 62 and the sliding member 60. If the connection between the trunnions and the readily, but without unusual jar. When the scoop is being loaded, thesliding member will be at the back end of its travel, and whenthe scraper is dumped the framev will move back in relation to the scoop.

I claim as new and ask for Letters Patent upon: 1. In a wheeled scraper, the-combination of a frame on wheels, a main scraper scoop hung within the frame, means for dumping the main scoop, and an auxiliary scoop hung within the frame with the cuttingedge of the main scoop and the auxiliary scoop opposite to each other, and means for lifting the auxiliary scoop consisting of curved slotted guides attached to the frame, trunn'ions attached to the sides of the scoop constructed to slide within said curved guides, an arched support attached to said frame, said arch being of such size that the auxiliary scoop will not touch it in the limit of its travel, an approximately horizontal extension reaching backward from the bottom of the arch, a hanger pivoted to said extension at the center of the curve of said guides, the other end of the hanger being attached to the auxiliary scraper scoop, and a rocker pivoted in said arch, a connecting rod from said rocker to the auxiliary scoop, and means for rocking said rocker, substantially as described and for the purposes set forth.

2. In a wheeled scraper the combination of a frame. wheels carrying said frame, a main scraper scoop hung within the frame,

, means for filling and for dumping said main scoop, and an auxiliary scoop hung within the frame opposite to the main scoop, so that normally the bottom of the auxiliary scoop will be on a parallel plane with the bottom of the main scoop when it is being transported with a load, and so said bottoms slightly overlap, and independent means for dumping said auxiliarly scoop, substantially as described.

scoops are swung so their bottoms are approximately parallel with the ground, their cutting edges approximately meet, and in:

dependent means for dumping said auxiliary scoop, substantially as described and for the purposes set forth.

at. In a wheeled scraper, the combination of a frame, wheels carrying said frame, a main scraper scoop hung within the frame, means for filling and for dumping said main scoop, an auxiliary scoop hung within the frame opposite to the main scoop, in such relation with the main scoop that when both scoops are swung so their bottoms are approximately parallel with the ground, their cutting edges approximately meet, and means for moving said auxiliary scoop in a position with the cutting edge of the auxiliary scoop approximately overlapping the cutting edge of the main scoop by the draft power moving the scraper, substantially as described.

RUDOLPH L. PFEIL. Witnesses J. K. REEDER, C. O. NIEUBORTS. 

